live wire

英 [lɪv ˈwaɪə(r)]

美 [lɪv ˈwaɪər]

n. 精力充沛之人; 生龙活虎之人

柯林斯词典

精力充沛之人；生龙活虎之人
If you describe someone as alive wire, you mean that they are lively and energetic.

noun

Two live wire contacting points on the sliding plate are in flat form, which reduces resistance force when the bulb is screwed, and the bulb is uneasy to be damaged.
滑动板上的两个火线触点为平面形的，使拧装灯泡时阻力小不易损坏；
It's dangerous to touch a live wire.
触摸带电的电线是最危险的。
The lineman was severely burned by the live wire.
电线架设工人被通电的电线严重烧伤。
Your brother is certainly a live wire, isn't he?
你弟弟的确是个活跃的人，不是吗？
She seems to have inexhaustible energy.; She's a live wire.
她仿佛有使不完的劲。
She's a live wire.
她既活泼而又精力充沛。
A barrier of felled or live trees with branches ( sharpened or with barbed wire entwined) toward the enemy.
用树枝做成的路障（这些树枝被削尖了，和带电铁丝网混在一起）以对付敌人。
If you touch a live wire you will get a shock.
如果你摸带电的电线，就会触电。
However, people can live in many different norms Jiezhuang see crosscutting temporary wiring casually provide connectivity and some have Luzhe copper wire;
但是，人们可以在许多很不规范的家装现场看到，纵横交错的临时电线胡乱搭接，有的还露着铜丝；
Wendy is the real live wire of the department who motivates all the others.
温迪是这个部门的活跃分子，对其他人很有激发力。